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Chapter 2 NI-DSP Analysis VI Reference
NI-DSP SRM for LabVIEW for Windows 2-4 Part 3: NI-DSP Function Reference
DSP Absolute
Find the absolute value of input array X. The i
th
element of the output array Y is obtained using
the following formula:
the following formula:
Y(i) = |X(i) |.
for i = 0, 1, 2, … , n-1
where n is the number of elements in X.
X is a DSP Handle Cluster that indicates the memory buffer on the DSP board that contains the input
signal array X.
signal array X.
Y in is a DSP Handle Cluster that indicates the memory buffer on the DSP board that will contain the
absolute results of X(i).
absolute results of X(i).
Y out is a DSP Handle Cluster that is identical to Y in, but with the absolute results already stored in the
memory buffer on the DSP board.
memory buffer on the DSP board.
error in (no error) contains the error information from a previous VI. If an error occurs, it is passed out
error out and no other calls are made.
error out and no other calls are made.
error out contains the error information for this call.
The operation can be performed in place; that is, the input and output arrays can be the same DSP Handle Cluster.